CN107864651A - Nozzle strip for the bellows of the pre-add thermal stress of glass disc - Google Patents
Nozzle strip for the bellows of the pre-add thermal stress of glass disc Download PDFInfo
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- CN107864651A CN107864651A CN201780001682.XA CN201780001682A CN107864651A CN 107864651 A CN107864651 A CN 107864651A CN 201780001682 A CN201780001682 A CN 201780001682A CN 107864651 A CN107864651 A CN 107864651A
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- Prior art keywords
- nozzle
- bellows
- nozzle strip
- glass
- disc
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/044—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/0404—Nozzles, blow heads, blowing units or their arrangements, specially adapted for flat or bent glass sheets
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The present invention relates to a kind of nozzle strip (1) of the bellows of the pre-add thermal stress for glass disc, there is a row correspondingly to carry for passing through nozzle bore (2) with the nozzle entrance (5) on the surface of air stream glass-loaded disc (I) and the nozzle (4) of nozzle bore (2) for it, wherein, nozzle bore (2) is arranged in the rising portions (3) in pile shape of the side of nozzle strip (1).
Description
Technical field
It is used for glass disc the present invention relates to a kind of nozzle strip, a kind of bellows equipped with this and comprising the bellows
Pre-add thermal stress device, and be related to a kind of prestress method implemented with this.
Background technology
The thermmohardening of glass disc is certainly known for a long time.Its often also referred to as pre-add thermal stress or exercise.Only example
Property with reference to the 1940's and generation nineteen fifty 808,880 1056333 A of B, DE of A, DE of patent document DE 710690.
This, is heated to the glass disc just under softening temperature and is loaded with air stream, it causes the rapid cold of glass disc
But (Quench).Thus, be configured in glass disc uniqueness stress curve, wherein, compression at surface and tension exists
Accounted in the core of glass disc leading.This influences the mechanical features of glass disc in two ways.First, the rupture of disc is stable
Property (Bruchstabilit t) is enhanced and it can withstand the load higher than unhardened disc.Secondly, the drawing in centre should
Glass rupture after the perforation in power area is (such as by the damage by sharp stone or by with the intentional of sharp emergency hammer
Breaking-up) realize not by larger sharp form of chips but in the form of less blunt fragment, thus risk of injury is shown
Writing reduces.
Based on feature described above, the glass disc of pre-add thermal stress is used as the so-called list in vehicular field
Piece safety glass, especially as rear window and side window glass.In particular in the case of car, these discs are typically curved
Bent.Here, bending and prestress are realized in combination：Disc is softened, is brought to the shape of desired bending by heating
In and be and then loaded with cooling air stream, wherein, produce prestressing force.Here, use so-called bellows (quenching box
(quench box), hardening head (quench head)), air stream is directed to bellows by stronger blower fan.In bellows
In, air stream have been categorized into correspondingly with nozzle strip close passage.Nozzle strip, which has, carries row's blowing holes or spray
The side of nozzle aperture, these blowing holes or nozzle bore point to glass disc and the air stream to be distributed by means of bellows loads this
Glass disc.The glass disc of bending typically moves between top and the bellows of bottom, and bellows is then close to each other
And close to disc surface for prestress.Overall apparatus with two bellows is frequently referred to as prestress station.
The above-mentioned side of the nozzle strip generally used constructs level land or curved surface on the whole, and nozzle strip has substantially in side
The shape of shape or the square shape of bending.Therefore, nozzle strip nearly forms the barrier for flowing out air, so that the stream
Go out air especially only can be between nozzle strip, efficiently flow out, without transverse to nozzle parallel to the bearing of trend of nozzle strip
Bar.In particular in the situation of the prestress of the disc of three-dimensional (circle) bending strongly, this may bring the shortcomings that obvious.
So compared with strong bending disc spill surface structure into a kind of basin (Kessel), thus heated air is uniquely being protected
The outflow on outflow direction stayed may be hindered.Air bound can so be produced, its hinder disc surface cooling and and then
Reduce prestress efficiency.
The bellows of nozzle strip with previously described form is for example in 3924402 C1 of C2, DE of DE 3612720
It is disclosed with the A1 of WO 2016054482.
The bellows or prestress device of other forms be it is also known that, air stream, which is not distributed to, wherein passes through
Nozzle strip is come in the passage closed.Bellows can for example with by plate come the cavity closed, form of the plate in two-dimentional sample
In be provided with opening (nozzle), thus air stream is divided and is distributed on the glass disc for treating prestress.
In order to improve prestress efficiency, it is desirable that so that the faster outflow of heated air turns into
May.Higher stress can be produced by higher prestress efficiency or produce existing stress curve with saving energy.
It it is known that the bellows provided with freestanding nozzle being put, being for example screwed.Such nozzle is not only right
Described in its cavity by nozzle plate come the bellows closed, and be divided into and pass through for such gas stream wherein
Nozzle strip describes come bellows in the passage closed.File example with reference to US 4519829A, US 4711655 A,
EP 0463971 A2, GB 505 188 A, US 2013/255319 A1, US 4 662 926 A, EP 0 719 242 B1 and
EP 0 002 055 A1.Such nozzle strip causes faster to be cooled into possibility in principle, because by between nozzle
Gap open also transverse to nozzle strip bearing of trend other flow pass.The more than one piece of nozzle strip and the nozzle put
Formula constructs but causes manufacture to become difficult and reduce the mechanical stability of the bellows system.
The content of the invention
The present invention be based on following purpose, i.e. offer a kind of pre-add thermal stress for glass disc bellows through changing
Kind nozzle strip.The nozzle strip should make it possible improved prestress efficiency, the especially disk in stronger three-dimensional bending
In the situation of the prestress of piece, there is higher mechanical stability and can easily manufacture.
According to the present invention, the purpose is realized by a kind of nozzle strip according to independent claims 1.Preferable design side
Case is learnt by dependent claims.
The nozzle strip according to the present invention for the bellows of the pre-add thermal stress of glass disc, which has, is provided with row's nozzle
The side in hole, these nozzle bores are provided for through the surface of the air stream glass-loaded disc of nozzle bore.Nozzle bore also may be used
Referred to as blowing holes or jet expansion.It correspondingly extends through the perforation of whole nozzle strip (Durchfuehrung) or bored
The end in hole, it is referred to as nozzle and gas is guided to disc surface by it by the gas passage (air duct) of bellows
On.Nozzle bore is the outlet of (nozzle) of perforating, and generally relative and be configured with entrance (nozzle entrance) at the side put.Typical case
Ground, such nozzle, which has, is connected to porch and the section that is tapered on the direction to outlet, in order to by air height
Imitate ground and suitably directed into flow technique by air duct in corresponding nozzle.
Thus the relative conventional nozzle strip for carrying smooth side face, is advantageously improved according to the nozzle strip of the present invention, i.e.
Nozzle bore is arranged in the rising portions in pile shape of side.
Alternatively, it is understood to be thus according to the relatively conventional nozzle strip of the nozzle strip of the present invention to advantageously improve,
I.e. so that the region between corresponding adjacent nozzle bore of side bounces back (zurueckgesetzt).
Nozzle strip is then configured with pile and is in pile pane (Zinnenfenseter) therebetween (that is between pile
Space).Nozzle bore is arranged on the top side of pile.Pile pane provides extra flow pass, so that blowing to disc
Heated air can also flow out transverse to the bearing of trend of nozzle strip after on surface, thus improve prestress efficiency.This
Be the present invention it is big the advantages of.
When it is expected stronger close at glass disc of nozzle strip, such as in order to improve prestress efficiency, then
Show another advantage of the present invention.Existing danger herein is the pre-add that nozzle strip is disposed thereon with disc or disc
Stress mold impingement.In the situation of the nozzle strip according to the present invention, position of collision is arranged in the previous rising portions in pile shape
On, it can easily be removed by material and is shortened, in order to collision free.
It is also understood as carrying according to the nozzle strip of the present invention and is arranged on side, raising or prominent independent spray
The nozzle strip of mouth, thus it is relatively known to be modified, i.e. nozzle integrally constructs with nozzle strip.Thus, it is ensured that nozzle strip
Larger mechanical stability and compared in the case of the nozzle specially tightened, nozzle strip can be manufactured more simply.
Nozzle strip preferably has nozzle bore of unique row approximately along straight line.In the rising portions of pile shape along same
The straight line of sample.A proper nozzle bore is preferably arranged with each rising portions in pile shape of the side of nozzle strip, typical case
Ground is substantially in centre.Row's nozzle bore preferably extends past at least the 80% of nozzle strip length.
Nozzle bore preferably has 4mm to 15mm, particularly preferably 5mm to 10mm, very particularly preferably 6mm to 8mm (examples
Such as 6mm or 8mm) diameter.The spacing of Adjacent nozzle holes is preferably 10mm to 50mm, particularly preferably 20mm to 40mm (examples
Such as 30mm).Good prestress result is obtained with this.Herein, represented with spacing between the corresponding intermediate point of nozzle bore
Spacing.
It is at least 10mm, particularly preferably at least 30mm in the highly preferred of rising portions of pile shape.Highly preferred is 10mm
To 150mm, particularly preferably 30mm to 100mm (such as 40mm or 60mm).Thus it is ensured that hot-air is effective between pile
Outflow and the simultaneously sufficient stability of nozzle.In meaning of the present invention, represented with the height in the rising portions of pile shape along spray
The size of the bearing of trend of mouth.
The diameter of nozzle bore is considered as in the situation of selection rising portions width, so that it is guaranteed that enough wall thickness of nozzle.
The wall thickness should be at least 1.5mm, so as to reach the enough stability of rising portions.Therefore, the width in the rising portions of pile shape is excellent
The value that choosing is consistent with the diameter with nozzle bore plus 3mm.Width in the rising portions of pile shape be, for example, 10mm to 30mm or
For 12mm to 22mm.In meaning of the present invention, to be arranged in the width means of the rising portions of pile shape along nozzle, (nozzle bore is successively
Arrangement) bearing of trend size.
The spacing of the adjacent rising portions in pile shape is more preferably at least 5mm, is particularly preferably at least 10mm.The spacing is excellent
Elect 5mm to 30mm, particularly preferably 10mm to 20mm as.The efficient outflow of heated air is ensured with this.It herein means
It is the spacing between the lateral edges of the face each other of pile.Width of the spacing then almost with pile pane is consistent.
Depth in the rising portions of pile shape is preferably consistent with the width or depth of nozzle strip, but in principle also can be bigger
Or smaller select.As width, minimum wall thickness (MINI W.) is considered in the situation of the depth of rising portions.In the rising portions of pile shape
Depth preferably have and add the value that 3mm is consistent with the diameter of nozzle bore.The depth is perpendicular to determining according to the present invention for pile
The height of justice and the size of width.
The length and width of nozzle strip follows bellows (setting nozzle strip for it) or the design side of its gas passage
Case.Representative value (bearing of trend arranged along nozzle measures) for nozzle strip length is 70cm to 150cm and for width
(being measured perpendicular to the length in the plane of nozzle bore) is 8cm to 15cm, is preferably 10 to 12mm for degree/depth.Spray
The quantity of nozzle aperture is by the length of nozzle strip and the mutual of nozzle away from drawing.
In a preferable design, each rising portions in pile shape has substantially square shape, wherein, corner angle
With seamed edge For manufacturing technology reasons or can be rounded based on the design known.Such shape can by easy to manufacture and
It is stable.But other shapes can be also realized in principle, such as the shape of cylinder or cone or truncation side's pyramid.
In another preferable design, at least it is molded deviously in the rising portions of pile shape and does not have straight section,
So as to draw a kind of corrugated profile in side view.Nozzle bore is arranged on crest (more specifically wave crest), and pile pane
Defined approximately through trough.In other words, the face with nozzle bore of nozzle strip constructs and does not have flat section deviously
Or part face.It can simply be manufactured in the shape of the rising portions of pile shape and avoid appearance of the seamed edge in pile pane, in pile
The glass fragment of glass disc damaged in pane or rupture may warpage or grab.Nozzle strip after from falling apart clear
It is clean thus substantially to be simplified.In this case, wavelength connecting line and trough deepest point connecting line between spacing quilt
Illustrate in the height of the rising portions of pile shape.The width of pile and the spacing of pile approximate can be measured on the height of embankment degree of half.Spray
The described shape of mouth bar should at least section/partly occur, wherein, the section/region preferably with nozzle strip at least
80% is consistent.It is desirable that generally whole nozzle strip designs in curved shape, wherein, the pile of two ends may make up exception,
Such as when end pile with remaining pile back to when level land constructs for the reason in production technology for side.
Nozzle strip preferably comprises aluminium or steel and is preferably made up of above-mentioned material.These materials are handled well, so that
Obtain nozzle strip can advantageously be manufactured, and cause favourable stability of the nozzle strip in long-time use.
The manufacture of nozzle strip can go out to send realization by the workpiece that is square or with the workpiece of the square form of bending.In incline
At side, the structure being configured in pile shape is removed by material.It is relative and can be removed at the lateral edges put by material to be formed it is recessed
Place, preferably by means of reamer, especially pointed drill, it produces the section being tapered of nozzle.In described job step
Before, afterwards or between, nozzle can by drilling be configured to.Nozzle entrance, the mistake between the recess and drilling being tapered
Cross or nozzle bore can be deburred, in order to make it possible improve flow curve.Material is removed and preferably cut by laser
Cut or water jet cutting is realized.
In addition, the present invention includes a kind of bellows equipped with least one nozzle strip according to the present invention.The bellows
Surface for glass-loaded disc is in order to pre-add thermal stress.Bellows is a kind of device with internal cavities and has gas
Body stream can be directed to the gas transfer pipeline in the inside of bellows via it.Gas stream is typically by means of blower fan or multiple
The blower fan of series connection produces.Preferably, gas transfer pipeline can be closed for example by means of sliding block or valve, so that gas stream
It can be internally interrupted in cavity, without turning off blower fan in itself.
Relative with gas transfer pipeline and put ground, gas stream is divided into multiple passages therein are connected in operation
At portion's cavity.These passages are also known as nozzle contact pin, nozzle fin (Duesenfinnen) or nozzle rib.These passage allusion quotations
Have slightly with elongated, substantially rectangular cross section type, wherein, longer size is substantially consistent and shorter with the width of cavity
Size be in 8cm to 15cm scope.Typically, these passages are arranged parallel to each other, so that it equably divides
Cloth is in the whole lateral boundaries of cavity.The quantity of passage is typically 10 to 50.
In a preferable design, internal cavities construct wedge shapedly.Here, the border for being adjacent to passage of cavity
Two sides are described as, it is assembled in the case of a certain acute angle.These passages are typically orthogonal to the company of above-mentioned side
Wiring extends.Therefore, the length of passage is not constant, but is increased by centre towards side so that passage is connected to sky
Entrance at chamber is wedge shaped and exports and is softened in the face of smooth typical bending.The outlet of all passages is typically altogether
It is configured in same smooth flexure plane.Pass through the described wedge shaped design of cavity and the described cloth of passage
Put, gas stream is particularly efficiently divided into passage and it produces gas stream highly uniform on whole effective area.
Each passage is closed in the end that it is relative with cavity to put with nozzle strip.Nozzle strip has multiple perforation,
It is referred to as nozzle and the gas stream of each passage is divided again by it.At least one, preferably all passage dresses in passage
Have the nozzle strip according to the present invention with the rising portions in pile shape.
Passage is typically configured to by plate and closed by nozzle strip.Side plate part preferably has straight in channel exit
Lateral edges.Bottom (itself and the side phase with the jet expansion on the rising portions in pile shape that the passage passes through nozzle strip
Pair and put) close.Plate is not driven high the rising portions until in pile shape.Such plate can be more simply and with less material
Expect into original manufacture.Further, since following actual conditions, i.e. the gap between the rising portions in pile shape of adjacent nozzle bar
In be not disposed with plate, the space for eluting gas is increased.
Nozzle strip is preferably configured in such a manner and installed, i.e. the rising portions skew ground arrangement in pile shape of adjacent nozzle bar.
Each rising portions is in " pile pane " arrangement for being adjacent to two adjacent nozzle strips.
Bellows is then drawn gas stream by the gas transfer pipeline with relatively small cross section via passage and nozzle
Assign on larger active area.These nozzle bores are that discrete gas leaves position, itself however exist with larger quantity and
It is uniformly distributed, so that all areas on surface are substantially cooled simultaneously and equably so that disc, which is provided with, uniformly in advance should
Power.
At least one nozzle strip according to the bellows of the present invention is according to the present invention's with the rising portions in pile shape
Nozzle strip.Preferably, multiple, particularly preferably all nozzle strips in nozzle strip construct according to the present invention.Then especially
Show advantage.
The spacing (being measured by middle accordingly) of adjacent nozzle bar is preferably 15mm to 50mm.
In addition, the present invention includes a kind of device of pre-add thermal stress for glass disc.The device includes the first air blast
Case and the second bellows, its is arranged disposed opposing each otherly so that its nozzle points to each other.Bellows is spaced, so as to glass
Glass disc may be arranged between it.Typically, the nozzle of the first bellows (bellows on top) is downwards, in particular vertically downward
Point to, and the nozzle of the second bellows (bellows of bottom) is upward, especially points to vertically upward.Then, glass disc can have
It is moved to horizontal positionedly between bellows sharply.
In addition, the device preferably includes the device for changing the spacing between first and second bellows.Thus, drum
Bellows can be moved towards each other or be moved away from each other relative to one another.Preferably, two bellows are by simultaneously towards that
This moves or is moved away from each other.Prestress efficiency can be improved by mobile blower case.In glass disc in air blast
After being moved into the state being spaced farther out of case between these bellows, bellows is mutual and and then with respect to glass disc
Spacing be lowered, thus can produce stronger gas stream on the glass surface.
In addition, the device includes the device for movable glass disc, it is suitable for glass disc being moved to two
Gap between individual bellows neutralizes to be removed again by above-mentioned gap.Can be for example using track, roller or conveyer belt system for this.
Glass disc alternatively can be supported in frame mold in the situation of transport.
The design of bellows and its gas passage and nozzle strip is preferably matched with the shape for the disc for treating prestress
Shape.Here, the nozzle bore of bellows struts the face of convex curvature and the nozzle bore of bellows that is relative and putting struts convex curve
Face.The intensity of bending is also according to disk shape.In the situation of prestress, recessed table of the convex bellows towards disc
Face and recessed bellows are towards convex surface.Such nozzle bore can be positioned at glass surface closer to ground, and this improves pre-
Add and answer force efficiency.Because the disc generally with the recessed surface being directed upwards towards is transported to prestress station, top
Bellows preferably design convexly and the bellows lowland of bottom design.
Present invention additionally comprises a kind of component of the pre-add thermal stress for glass disc, it includes the apparatus according to the invention
And the glass disc being arranged between two bellows.
In addition, the present invention includes a kind of method of pre-add thermal stress for glass disc, wherein,
(a) the unilateral formula of glass plate with two interareas and a circular lateral edges that is heated, treating prestress ground cloth
Put between the first bellows and the second bellows, so that two interareas can be loaded with gas stream, wherein, the first air blast
Case and/or the second bellows are equipped with least one nozzle strip according to the present invention；
(b) two interareas of glass disc are loaded with gas stream by means of two bellows so that glass disc is cooled.
Preferably, at least one bellows or similarly two bellows be in the great majority ground or only be equipped with according to the present invention
Nozzle strip.
Glass disc is preferably transported between bellows on roller, track or conveyer belt.In a kind of favourable implementation
In scheme, glass disc is arranged in on the mould (frame mold) in the bearing-surface of frame-like herein.
After glass disc is disposed there between, bellows is preferably close to each other.In this way, nozzle bore is with respect to disc table
The spacing in face is shortened and prestress efficiency is enhanced.
Disc surface is realized as follows with the loading of gas stream, i.e. gas stream is directed to the interior of each bellows
In portion's cavity, it is divided and is evenly distributedly guided to via nozzle bore in disc surface in this place.
The gas that be used to cool down glass disc is preferably air.Air can answer to improve prestress efficiency in pre-add
It is therefore actively cooled in power apparatus.Typically, however use not by active measures by the air of specific heating.
Disc surface is preferably loaded with gas stream on 1s to 10s period.
In a preferred embodiment, treat that the glass disc of prestress is made up of soda-lime glass, as it is for window glass
For glass it is common as.The glass disc however can equally include other type of glass (such as Pyrex or quartz glass)
Or thus form.The thickness of glass disc is typically 0.2mm to 10mm, is preferably 0.5mm to 5mm.
In a favourable embodiment, the method according to the invention is directly coupled to flat in the initial state wherein
At the BENDING PROCESS that glass disc is bent.During BENDING PROCESS, glass disc is heated until on softening temperature.In glass
By before significantly cooling down, prestress process is connected at BENDING PROCESS disc.In this way, glass disc need not for prestress
Expressly heated again.
The disc of the prestress of bending is especially common in vehicular field.The glass of prestress is treated according to the present invention
Therefore glass disc is preferably provided to vehicle, particularly preferably motor vehicle and the in particular glass pane of car.
Opened according to the nozzle strip of the present invention and passed through for the air flowing in disc surface in raising in pile shape
The extra flow pass in the region between portion.Especially bent strongly on the direction of the bearing of trend of nozzle strip
So that nozzle strip can be showed in the situation of the prestress of the glass disc of the potential barrier of the air for outflow
Go out the advantage.There is (so-called three-dimensional in the situation for the disc being bent strongly on two spaces direction in particular in this
Or spherical bending) carry higher bending depth.Disc so compared with strong bending forms a kind of basin, so that gas can
Less flow out well, especially in the situation using the nozzle strip being square of routine, it is the volume for eluting gas
Outer barrier.Therefore, the method according to the invention is applied to such relatively strong curved in a kind of particularly advantageous embodiment
On bent glass disc, wherein, the bellows pointed at least in recessed disc surface is equipped with according to nozzle strip of the invention.
Glass disc has at least 5 preferably on the bending direction perpendicular to the bearing of trend of nozzle strip, is more preferably at least 8, is special
Preferably at least 10 curvature BG.Here, curvature is defined as, wherein, SL represents so-called chord length, existed
The length of line segment on direction of observation between the center of lateral edges, and KT represents bending depth, disc center i.e. geometrically
With the vertical range of above-mentioned line segment.The expression of chord length and bending depth is common for professional person.Obviously, from above-mentioned
Curvature plays the significant basin effect (Kesseleffekt) of appearance and the present invention shows its advantage in a particular manner.Because spray
Mouth bar is generally parallel to the upper seamed edge and lower seamed edge arrangement (this is typically the longer stretched dimensions of disc) of glass disc, so
Above-mentioned minimum bend is preferably applied to vertical bending direction, that is to say, that the bending direction between upper seamed edge and lower seamed edge.
Upper seamed edge is to be provided in installation site the lateral edges for the disc that relative roof points to upwards, and lower seamed edge is downwardly directed.
Alternative curvature can also be defined as。
Glass disc must have minimum thickness, in order to be preheated stress because disc surface and disc core it
Between the difference of cooling velocity be conclusive for forming unique curve of compression and tension.Utilize the drum of routine
Bellows, disc can be preheated stress from about 3mm minimum thickness.Pass through the improved pre- of the nozzle strip according to the present invention
Add and answer force efficiency to can help to following effort, even if relatively thin disc can equally be preheated stress.In this way, using according to this hair
Bright method, the glass disc with the thickness less than 3mm can be equally prestressed.
Nozzle strip can especially be matched with disc geometry as follows in the situation of smaller spacing, i.e. shorten dry
Disturb nozzle.In this way, nozzle strip can for example be moved to desired of relative glass disc in section (Teststand) is tested
Shortening and glass disc are removed away from and by material or carry the lift in pile shape that the carrying mould of the glass disc collides
High portion, in order to collision free.
In addition, the present invention using the glass disc that the method according to the invention is prestressed for land,
Use in the vehicles of traffic in the air or on the water, preferably as the glass pane in rail vehicle or motor vehicle,
Especially as the rear window of car, side window glass or skylight glass.
Brief description of the drawings
The present invention is elaborated below according to drawings and examples.Accompanying drawing is schematically to illustrate and is not to scale (NTS).
Accompanying drawing is not limit the invention in any way.
Wherein：
Fig. 1 shows the perspective view of the nozzle strip according to the present invention,
Fig. 2 shown through the cross section of the nozzle strip according to Fig. 1,
Fig. 3 is shown through two according to the part as the apparatus according to the invention for pre-add thermal stress of the present invention
The cross section of bellows,
Fig. 4 shows rotation through the device according to Fig. 3 with 90o another cross section,
Fig. 5 shows the top view of the nozzle strip towards the bellows according to the present invention,
Fig. 6 shows the flow chart of a form of implementation of the method according to the invention,
Fig. 7 shows the side view of another design of the nozzle strip according to the present invention, and
Fig. 8 shows illustrating for curvature BG.
Embodiment
Fig. 1 and Fig. 2 shows the nozzle strip 1 according to the present invention of the bellows of the pre-add thermal stress for glass disc
Each details of design.Nozzle strip 1 by that can be handled well and the aluminium with advantageously less weight is formed.Spray
The mouth bar such as width with 11mm, wherein, these sizes are coordinated for this, i.e. close the gas passage of attached bellows.
As common in the situation of the nozzle strip of the type, row's nozzle 4 is configured with towards according to the nozzle strip 1 of the present invention.
Each nozzle 4 is relative at two of nozzle strip 1 and the perforation (drilling) between the side put.Nozzle 4 is provided for gas
Flow and exported from attached bellows, wherein, gas stream enters in nozzle 4 via nozzle entrance 5 and via nozzle bore 2 from nozzle
In 4 out.Therefore the side of nozzle strip 1 with nozzle entrance 5 must face bellows in installation site, and carry nozzle bore
2 side is back to bellows.
According to the present invention, the lateral edges for the nozzle strip 1 that nozzle bore 2 is disposed thereon are configured with the rising portions 3 in pile shape, its
In, each nozzle bore 2 is respectively disposed in such rising portions 3.The advantages of arrangement, is, by adjacent pile (" pile
Pane ") between regional structure into flow pass.By these flow pass, in order to which pre-add thermal stress is guided to glass plate
Gas on the surface of piece can more preferably and quickly flow out, and thus accelerate heat transport.The cooling of glass surface is real more quickly
It is existing, so as to improve prestress efficiency.The prestress efficiency of the raising can carry out fully profit in its side in the form of two kinds different
With：
- previously given stress value can be realized with less gas stream so that prestress process can be disappeared with less energy
Consume to perform.
- higher the stress value that be may be implemented in using existing gas stream in glass disc and relatively thin glass disc is especially
Also stress can be preheated.
These advantages are especially in the disc (three-dimensional bending, spherical curvature) being bent strongly on two spaces direction
Show in situation, gas outflow wherein is obstructed due to its basin shape.
Construct to remaining ambient light sliding surface formula of nozzle strip 1.
The physical dimension of embodiment is summarized below.But it exemplarily only understands and should not in any way limit this
Invention.
In rising portions 3 width b, 40mm with 15mm of pile shape height h and 11cm depth t, wherein, depth t is big
Cause is consistent with the width of nozzle strip 1.The spacing a of adjacent rising portions 3 is 15mm.The spacing at the center of Adjacent nozzle holes 2 is 30mm.
Each nozzle has the nozzle entrance 5 through widening strongly, and the section being tapered is connected at its.Thereafter, spray
It is maintained at 6mm to the constant diameter of mouth until nozzle bore 2.
Fig. 3 and Fig. 4 shows a design of the apparatus according to the invention of the pre-add thermal stress for glass disc.
The device includes the first top bellows 10.1 and the second blowing air down case 10.2, and it is arranged so disposed opposing each otherly,
That is, nozzle bore 2 points to each other.In addition, the device includes transportation system 15, glass disc I for treating prestress can be transported with it
It is defeated to arrive between bellows 10.1 and 10.2.Here, glass disc I is horizontally supported in frame mold 16, it has glass
The bearing-surface in frame-like that disc I circular fringe region is placed thereon.Actual conveying arrangement 15 is for example by rail
Road or roller system are formed, and frame mold 16 is movably supported on thereon.Glass disc I is, for example, what is be made up of soda-lime glass
Disc, it is arranged for the rear window of car.Glass disc I undergoes BENDING PROCESS, wherein, its temperature at about 650 DEG C
For example it is brought in the situation of degree by means of gravity-bending or extruding bending in set curved shape.Transportation system 15 is used for
Glass disc I in not yet heated condition is transported to prestress device by bending apparatus.In this place, two interareas pass through
Bellows 10.1 and 10.2 is loaded with air stream, in order to which it to be cooled down to and so produced the tension and pressure of machinery strongly
Unique curve of stress.Then glass disc I through pre-add thermal stress is suitable as the institute as vehicle rear window glass
The monolithic safety glass of meaning.After prestress, disc is by transportation system 15 by again from bellows 10.1 and 10.2
Between gap in transport, thus prestress device is available for the prestress of next glass disc.In addition, the device has
There is the device for moving towards each other and being moved away from each other for bellows 10.1 and 10.2.Once glass disc I reaches it
The set position between bellows 10.1 and 10.2, bellows 10.1 and 10.2 are mutual and relatively between disc surface
Away from being lowered, in order to obtain stronger cooling effect by air stream.After prestress is completed, spacing is increased again,
In order to which glass disc I can be transported in without its own or the situation of the damage of nozzle strip 1.Glass disc I transporter
Shown to the arrow in figure 3 by grey.
Bellows 10.1 and 10.2 is the bellows of the form, as it is for example in the C1 of file DE 3924402 or WO
As described in 2016054482 A1.It has internal cavity 11, and air stream is transfused to via gas transfer pipeline 12
To cavity, the air stream is shown by the arrow of grey in the accompanying drawings.Air stream for example passes through two unshowned, series connection wind
Machine produces, and it is connected via gas transfer pipeline 12 with bellows 10.1 or 10.2.By closing valve 13, air stream can
It is interrupted, and blower fan need not be turned off.
Put relatively with gas transfer pipeline 12, passage 14 is connected at cavity 11, and air stream is divided into by passage
One row flows part.Passage 14 is constructed in the form of hollow rib, and it is dimensionally equally long roughly as cavity 11 and is hung down to this
There is such as about 11mm significantly smaller width, passage 14 is with its slightly long cross section cloth in parallel with each other in straight size
Put, substantially locate in a straight line so as to the terminal of all passages, it is perpendicular to the bearing of trend extension slightly with elongated passage.It is logical
Road 14 shows that quantity is not representational and is only used for illustrating action principle.
Cavity 11 constructs in wedge-like, and the depth of cavity 11 is along first size in the middle maximum of bellows and at two
Outwards it is gradually reduced on direction.In the second size perpendicular to this, depth is in the situation of the given position of first size
Correspondingly keep constant.Passage 14 is coupled to along above-mentioned first size at wedge shaped cavity 11.Therefore, it has complementation
In the wedge-shaped depth curve of cavity 11, wherein, depth is minimum in the centre of passage 14 and outwards gradually increases, so that often
The air outlet slit of individual passage 14 is configured in the smooth face typically, however bent.The air outlet slit of all passages 14 is configured to
Common shiny surface.
Fig. 3 and Fig. 4 shows two cross sections with angle in 90 ° each other.Fig. 3 is shown transverse to passage 14
Be oriented along the cross section of above-mentioned second size of bellows 10,1,10.2 so that each passage 14 can in cross section by
Identify.In cutting plane, the depth of cavity 11 is constant.Fig. 4, which is shown along passage 14, is oriented along bellows
10.1,10.2 above-mentioned first size cross section.Herein, the wedge shaped depth profile of cavity 11 can be identified out, and
Unique passage 14 is only existed in cutting plane, its depth curve can be equally identified out.
Each passage 14 is in the end that it is relative with cavity to put to be closed according to nozzle strip 1 of the invention.Pass through
Nozzle strip 1, the air stream of each passage 14 are divided into the other part stream being directed to accordingly by nozzle 4 again.Each
Portion is diverted through nozzle entrance 5 and is entered in nozzle 4 by passage 14, come out by nozzle bore 2 from nozzle 4 and then get to glass
On disc I surface.
Fig. 5 shows the section of the top view of the nozzle bore 2 towards bellows 10.1,10.2.The quantity of nozzle strip 1 is again not
It is representative and be only used for illustrating.It can be identified out as follows, i.e. adjacent nozzle strip 1 is arranged offset from each other, so as to
So that the rising portions 3 in pile shape of nozzle strip 1 is accordingly disposed adjacent to respect to " the pile pane " of two adjacent nozzle strips 1.It is logical
Cross the distribution as uniform as possible that the arrangement realizes nozzle bore 2.
Fig. 6 shows an implementation of the method according to the invention of the pre-add thermal stress for glass disc according to flow chart
Example.
Fig. 7 shows another design of the nozzle strip 1 according to the present invention.In the rising portions 3 of pile shape herein not in side
Construct to shape.Alternatively, the face of nozzle strip 1 is configured with nozzle bore 2 deviously.Nozzle strip the side view shown (i.e.
It is connected with face that is relative and putting towards the face made with nozzle bore 2 and the face of length dimension arrangement along nozzle strip 1 is bowed
View) in draw the wavy curve with convex crest and recessed trough.Nozzle bore 2 is arranged on wave crest.Because carry nozzle
The surface in hole 2 does not have flat section, so non-structure between the rising portions 3 in pile shape that the possible grab of glass fragment is lived wherein
Seamed edge is made.After from falling apart, therefore the nozzle strip 1 can be cleaned relatively easily.
Fig. 8 illustrates curvature BG by pass through glass disc I schematical cross section.Curvature BG describes glass
The amplitude of the bending of disc.The curvature is defined as.Chord length SL is represented on direction of observation in lateral edges
The length of line segment between center.Bend the vertical interval that depth KT represents the geometry disc center of above-mentioned line segment.Finally, curvature
BG illustrates that it is represented by a dotted line in the accompanying drawings just through the slope at geometry disc center and the center of lateral edges.Curvature
BG is bigger, glass disc I more in basin shape construct and the present invention effect, i.e. by the offer of extra air flow pass
Improved efficiency more advantageously show.
Example
Using the bellows according to the present invention and conventional bellows with the nozzle strip being square come to vertical big
The rear window prestress of curvature in 8 and the horizontal curvature more than 4.It is mutually equidistant with respect to bellows in glass disc
In situation, the rotating speed of blower fan and and then the flowing velocity of air stream be so adjusted, i.e. to be produced according to the nozzle strip of the present invention
It is raw to be broken pattern (Bruchbild) with conventional identical.Fracture pattern passes through broken in the situation of the fracture of glass disc
The quantity and size of block characterize and are the amounts of institute's degree to which for prestress.It has proven convenient that the spray according to the present invention
Mouth bar make it that the energy more than 5% is saved.The result is unexpected and astonishing for professional person
's.
Reference numerals list
(1) nozzle strip
(2) nozzle bore/outlet of nozzle 4
(3) rising portions in pile shape of nozzle strip 1
(4) nozzle
(5) nozzle entrance/entrance of nozzle 4
(10.1) first/top bellows
(10.2) second/blowing air down casees
(11) cavity of bellows 10
(12) gas transfer pipeline of bellows 10
(13) the closing valve in gas transfer pipeline 12
(14) passage of bellows 10/nozzle contact pin
(15) it is used for the transportation system of glass disc
(16) it is used for the frame mold of glass disc
(b) in pile shape rising portions 3 width
(h) in pile shape rising portions 3 height
(t) in pile shape rising portions 3 depth
(a) spacing of adjacent rising portions 3
(I) glass disc
SL chord lengths
KT bends depth.
Claims (14)
1. the nozzle strip (1) of the bellows for the pre-add thermal stress of glass disc, there is a row correspondingly to carry for leading to for it
Nozzle bore (2) is crossed with the nozzle entrance (5) on the surface of air stream glass-loaded disc (I) and the nozzle (4) of nozzle bore (2), its
In, the nozzle bore (2) is arranged in the rising portions (3) in pile shape of the side of the nozzle strip (1), itself and the nozzle strip
(1) integrally construct.
2. nozzle strip according to claim 1, wherein, the nozzle bore (2) is with 10mm to 50mm mutual spacing cloth
Put.
3. nozzle strip according to claim 1 or 2, wherein, the nozzle bore (2) has 4mm to 15mm, preferably 5mm extremely
10mm diameter.
4. nozzle strip according to any one of claim 1 to 3, wherein, the height (h) of the rising portions (3) is 10mm
To 150mm, preferably 30mm to 100mm.
5. nozzle strip according to any one of claim 1 to 4, wherein, the width (b) of the rising portions (3) at least with
The diameter of the nozzle bore (2) is consistent plus 3mm.
6. nozzle strip according to any one of claim 1 to 5, wherein, the spacing (a) of adjacent rising portions (3) is at least
5mm, preferably at least 10mm.
7. nozzle strip according to any one of claim 1 to 6, wherein, the nozzle (4) is by the nozzle entrance
(5) extremely there is the section being tapered on the direction of the nozzle bore (2).
8. nozzle strip according to any one of claim 1 to 7, wherein, the nozzle strip (1) includes aluminium or steel.
9. nozzle strip according to any one of claim 1 to 8, wherein, the rising portions (3) in pile shape is at least partly
Construct deviously so that the side of the nozzle strip (1) with the rising portions (3) in pile shape does not have flat section.
10. the bellows (10.1,10.2) for the pre-add thermal stress of glass disc includes cavity (11), is connected to the sky
The gas transfer pipeline (12) at chamber (11) place and a row are coupled to the passage (14) at the cavity (11) place, wherein, at least one
Individual passage (14) is relative with the cavity (11) and is come with nozzle strip according to any one of claim 1 to 9 (1) with putting
Closing.
11. the device of the pre-add thermal stress for glass disc, including
- the first bellows (10.1) and the second bellows (10.2), its is arranged disposed opposing each otherly so that first air blast
The nozzle bore of case (10.1) and second bellows (10.2) point to each other, wherein, first bellows (10.1) and/or
Second bellows (10.2) is equipped with least one nozzle strip (1) according to any one of claim 1 to 9；With
- be used to glass disc (I) being moved between first bellows (10.1) and second bellows (10.2)
Gap in device.
12. the method for the pre-add thermal stress for glass disc, wherein,
(a) it is arranged in the first air blast while there is heated glass disc (I) face formula of two interareas and a circular lateral edges
Between case (10.1) and the second bellows (10.2) so that described two interareas can be loaded with gas stream, wherein, described first
Bellows (10.1) and/or second bellows (10.2) are equipped with least one according to any one of claim 1 to 8 institute
The nozzle strip (1) stated；
(b) two interareas of the glass disc (I) are loaded with gas by means of described two bellows (10.1,10.2)
Stream so that the glass disc (I) is cooled.
13. according to the method for claim 12, wherein, the glass disc (I) is perpendicular to the nozzle strip (1)
There is at least 5 curvature on the bending direction of bearing of trend, wherein, SL represents the string on direction of observation
Grow and KT expression bending depth.
14. with the method according to claim 12 or 13 come the glass disc (I) of prestress on land,
Use in the vehicles of traffic in the air or on the water, preferably as the glass pane in rail vehicle or motor vehicle, especially
It is as the rear window of car, side window glass or skylight glass.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16180585.8 | 2016-07-21 | ||
| EP16180585 | 2016-07-21 | ||
| PCT/EP2017/065663 WO2018015108A1 (en) | 2016-07-21 | 2017-06-26 | Nozzle strip for a blowing box for thermally prestressing glass panes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107864651A true CN107864651A (en) | 2018-03-30 |
Family
ID=56555205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780001682.XA Pending CN107864651A (en) | 2016-07-21 | 2017-06-26 | Nozzle strip for the bellows of the pre-add thermal stress of glass disc |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11702357B2 (en) |
| EP (1) | EP3487817A1 (en) |
| JP (1) | JP6761103B2 (en) |
| CN (1) | CN107864651A (en) |
| WO (1) | WO2018015108A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI680807B (en) * | 2018-10-30 | 2020-01-01 | 怡定興科技股份有限公司 | Shower curtain coating device and shower curtain coating system with the shower curtain coating device |
| CN112811803A (en) | 2020-04-29 | 2021-05-18 | 法国圣戈班玻璃公司 | Blow box for thermally prestressing glass sheets |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20210363049A1 (en) | 2021-11-25 |
| JP6761103B2 (en) | 2020-09-23 |
| WO2018015108A1 (en) | 2018-01-25 |
| EP3487817A1 (en) | 2019-05-29 |
| JP2019527188A (en) | 2019-09-26 |
| US11702357B2 (en) | 2023-07-18 |
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Application publication date: 20180330 |